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Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas

Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their low cost and high efficiency. However, since they...

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Main Authors: Annunciação, Daniel Luiz Rodrigues da, Almeida, Fernanda Vasconcelos de, Hara, Emerson L. Y., Grassi, Marco T., Sodré, Fernando Fabriz
Format: Artigo
Language: Portuguese
Published: Sociedade Brasileira de Química 2019
Subjects:
Éteres
Produtos químicos
Poluentes
Online Access: http://repositorio.unb.br/handle/10482/33341
https://dx.doi.org/10.21577/0100-4042.20170218
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spelling ir-10482-333412019-05-22T15:22:52Z Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas Polybrominated diphenyl ethers (PBDE) as persistent contaminants : origin, behavior in the environment and analytical strategies Annunciação, Daniel Luiz Rodrigues da Almeida, Fernanda Vasconcelos de Hara, Emerson L. Y. Grassi, Marco T. Sodré, Fernando Fabriz Éteres Produtos químicos Poluentes Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their low cost and high efficiency. However, since they are mixed and not chemically bonded to the materials, PBDEs can be released over time being transported through numerous pathways until they reach soils and aquatic systems, where they can accumulate in sediments and biota. Due to their high chemical stability, an essential feature for flame retardants, they are considered persistent contaminants. Several studies report the presence of PBDEs in atmospheric and aquatic particulate matter, sediments, soils and biological matrices such as marine animals, tissues and human fluids. In Brazil, little is known about the use and commercialization of PBDEs, as well as their levels in different environmental compartments. Thus, this review provides an overview of the origin of PBDEs in the environment as well as information inherent to the understanding of the behavior and presence of this contaminants of recent interest in different environmental compartments. Finally, the manuscript also brings state-of-the-art analytical approaches used for environmental sampling, preservation, preparation and sample analysis. 2019-01-02T13:50:38Z 2019-01-02T13:50:38Z 2018 Artigo ANNUNCIACAO, Daniel L. R. et al. Éteres difenílicos polibromados (PBDE) como contaminantes persistentes: ocorrência, comportamento no ambiente e estratégias analíticas. Química Nova, São Paulo, v. 41, n. 7, p. 782-795, jul. 2018. DOI: http://dx.doi.org/10.21577/0100-4042.20170218. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422018000700782&lng=en&nrm=iso. Acesso em: 22 maio 2019. http://repositorio.unb.br/handle/10482/33341 https://dx.doi.org/10.21577/0100-4042.20170218 pt Acesso Aberto (CC BY) - This is an open-access article distributed under the terms of the Creative Commons Attribution License. application/pdf Sociedade Brasileira de Química
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language Portuguese
topic Éteres
Produtos químicos
Poluentes
spellingShingle Éteres
Produtos químicos
Poluentes
Annunciação, Daniel Luiz Rodrigues da
Almeida, Fernanda Vasconcelos de
Hara, Emerson L. Y.
Grassi, Marco T.
Sodré, Fernando Fabriz
Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
description Flame retardants are substances mixed with numerous materials to inhibit the combustion process, reducing risks and damages caused by fires. Among these substances, polybrominated diphenyl ethers (PBDEs) have been widely used for decades due to their low cost and high efficiency. However, since they are mixed and not chemically bonded to the materials, PBDEs can be released over time being transported through numerous pathways until they reach soils and aquatic systems, where they can accumulate in sediments and biota. Due to their high chemical stability, an essential feature for flame retardants, they are considered persistent contaminants. Several studies report the presence of PBDEs in atmospheric and aquatic particulate matter, sediments, soils and biological matrices such as marine animals, tissues and human fluids. In Brazil, little is known about the use and commercialization of PBDEs, as well as their levels in different environmental compartments. Thus, this review provides an overview of the origin of PBDEs in the environment as well as information inherent to the understanding of the behavior and presence of this contaminants of recent interest in different environmental compartments. Finally, the manuscript also brings state-of-the-art analytical approaches used for environmental sampling, preservation, preparation and sample analysis.
format Artigo
author Annunciação, Daniel Luiz Rodrigues da
Almeida, Fernanda Vasconcelos de
Hara, Emerson L. Y.
Grassi, Marco T.
Sodré, Fernando Fabriz
author_sort Annunciação, Daniel Luiz Rodrigues da
title Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
title_short Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
title_full Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
title_fullStr Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
title_full_unstemmed Éteres difenílicos polibromados (PBDE) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
title_sort éteres difenílicos polibromados (pbde) como contaminantes persistentes : ocorrência, comportamento no ambiente e estratégias analíticas
publisher Sociedade Brasileira de Química
publishDate 2019
url http://repositorio.unb.br/handle/10482/33341
https://dx.doi.org/10.21577/0100-4042.20170218
_version_ 1641989022114906112
score 13.657419

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